Pinterest Q4: revenue up 12% YoY to $981.3M, vs. $991M est., MAUs up 11% YoY to 498M, vs. 487M est., and a weaker-than-expected Q1 forecast; PINS drops 10%+ (Jonathan Vanian/CNBC)

Jonathan Vanian / CNBC:
Pinterest Q4: revenue up 12% YoY to $981.3M, vs. $991M est., MAUs up 11% YoY to 498M, vs. 487M est., and a weaker-than-expected Q1 forecast; PINS drops 10%+  —  - Pinterest missed on sales but beat on earnings in its fourth-quarter earnings report.  — The company also issued a weaker-than-expected forecast.